Needle-straightening machine



A. ALTMAN. vIIIEEDIE STRAIGHTENING MACHINE. APPLICATION FILED JUNE I5,I9I7.

Patented Dec. 7, 1920.

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Snom/11601 akanne1# A. ALTMAN.

NEEDLE STRAIGHTENING MACHINE.

APPLICATION FILED IuNE I5, Isn.

1,361,513, Patented 110111920.-

A. ALTMAN.

' NEEDLE STRAIGHTENING MACHINE.

APPLICATION F|LD1uNE15, 1917.

1,361,513, Patented Dee. 7,1920.

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APPLICATION FILED Inn; I5,. I-aIJz.

Patented Dec. 7, 1920.

A. ALTMAN.

NEEDLE STRAIGHTENING MACHINE.

APPLICATION FILED IuNE I5, I9I7.

1,361,513. Patented Dec. 7, 1920.

I8 SHEETS-SHEET 5.

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A. ALTMAN.

NEEDLE STRAIGHTENING MACHINE.

APPLICATION FILED IuNE I5, 1917.

1,361,5 13, Patented Dec. 7, 1920.

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A. ALTMAN, NEEDLE STRAIGHTENING MACHINE.

APPLICATION FILED JUNE 15, 1917.

1,361,513. Patented Dec. 7,1920.'

A. ALTMAN.

NEEDLE STR-AIGHTENING MACHINE.

:.PPLlcATuoM FILED 11111515, 1911.

Patented 111111.11920.

18 SHEETS-SHEET 9.

A. ALTMAN.

. NEEDLE STRAIGHTENING MACHINE.

PPLICATIQN FILED 111111515, 1917.

L Patented Dec. ,7, 1920.

18 SHEETS-SHEET l0.

will-2f M A. A-LTMAN.

NEEDLE STRAIGHTEN'INC MACHINE. APPLICATION F|LED1uN15,|9i1.

1,361 ,5 1 3. Patented Dec. 7, 1920.

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A. ALTMAN.

NEEDLE STRAIGHTENING MACHINE.

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APPLICATION F1LEDJU,NE15,.19`1I.

Dl/7L 007' A. ALTMAN.

NEEDLE STRAIGHTENING MACHlNE.

v APPLICAUON F1LEDIUNE15,1917- 1,361,5 13, Patented Deo. 7, 1920.

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NEEDLE STIAI-GHTENING MACHINE. APPLICATION FILED I UNE I5, I9IT.

1,36 1 ,5 1 3, Patented Dec. 7, 1920.

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A. ALTMAN.

NEEDLE SRAIGHTENING MACHINE.

` Patented Dec; 7, 1920.

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1,361,513. y Patented Dec. 75 1920.

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Patented Dec. 7,1920.

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wventoz UNITED STATES PATENT OFFICE.

ALEXANDER ALTMAN, or TCRRINGTCN, CONNECTICUT, AssiGNcE, BYKMESNE ASSIGN-iviENTs, To TEE ToEEiNGToN COMPANY, 0E ToEEiNGToN, CONNECTICUT, A Con-PORATION OF CONNECTICUT.

Specification of Letters Patent.

lApplication filed J'une 15, 1917.J Serial No. 174,936.

T0 all wlw/Ht it may concer/n.'

Be it known that I, ALEXANDER ALTMAN,

a subject of the Emperor of Austria-Hungary, residing at Torrington, inthe'county ot Litchfield, State or' Connecticut, have invented certainnew and useful Improvements in Needle-Straightening Machines, of whichthe `following is a description, reference being had to the accompanyingdrawing, and to the igures of reference marked theieon.- v

rIhis invention relates to certain new and useful improvements in needlestraightening machines and contemplates more especially an automaticmechanism for removing the curves or ciooks in needles used for highspeed sewing machine work.

The crooks in a needle usually result from the tempering process towhich Vthe needle is subjected, and before the needle can besuccessfully used in connection with high speed sewing machines, itmust' be straightened. f f

At the present time needles are generally straightened by hand. machinesin use for such purpose, I have endeavored to produce a novel machinefor this purpose which is comparatively simple,

entirely automatic, and which produces coni-A mercial needles withspeed, thereby largely increasing` the output.

The herein-described invention has been designed to overcome thedifficulties now experienced and to provide a machine capable oiproducing a high grade of work, and at the same time'commerciallysuccessful in the trade.

An object oi' the invention is the production of a needle-straighteningmachine including in combination means for straightening a plurality ofneedles simultaneously; a feeding mechanism for delivering the nee-yrilthough there arev mechanism including clutches for Voperating themeans which intermittently moves the needle support.

Another object of this invention is the production ofl aneedle-straightening machine including in combination; a movable needlesupport designed to receive the needles in predetermined groups,Aneedlestraightening devices, including a plurality of hammers, meansincluding interconnected levers for controlling the operation'otthePatented Dee. 7, y1920. y

hammers,-needle-crook-detecting mechanism associated with each hammer-i'or determining the strength ot the blow to be given the needle by thehammer, and 'means for adjusting the straightening devices and theneedle-crook-detecting mechanism.

A further object of the invention is to produce a`V needle-straighteningmachine including in combination a needle support for receivingpredetermined groups of needles, needle-straightening `devices includinga plurality of hammers, and relatively positionedy block members uponwhich the needles are straightened, needle-crook-detecting mechanismconnected with each hammer, consisting of a positive selective blowdevice for determining the strength of the blow of the hammer ascompared with thecrook in the needle, and means for continuouslyrevolving the needles while being straightened. wWith these and otherobjects in view, the invention consists in the combination, arrangementand adjustment Yof the several mechanisms hereinafter described andpointed out in the appended claims. Y

In the drawings, which show an embodi- `ment of my invention as designedto operate upon round shank needles,--

Figure 1 is a front view of my improved needle-straightening machine;

Fig. 2 is a side view thereof; Y

Fig. 3 is a rear.` view of the machine with parts broken away; Y

Fig. 4 'is a vertical longitudinal sectional view through the machine;

Fig. 5 is 1a vertical transverse sectional view on the line 5v5 of Fig.4;

Fig. 6 is a similar view to Fig. 5 on the line 6-6 of Fig. 4;

Fig. 7 is an enlarged fragmentary front View illustrating the relativeposition of the needle-supporting dialV and associated levers andmechanisms for operating the vclutch shownin Fig. 8, and theinterconnected lock- Fig. l() is a fragmentary side elevation of one endofthe machine, illustrating the needle-supporting dial,.the lockingmeans for the dial 'while-the. needles are being straight-v ened, andthe interconnected levers for controlling the operation lof the blowwheel which operates theihammers;

Fig. ,l1 is ya detached perspective view of the levers for alternatingthe clutch -engagement` for intermittently ,operating the needlesupport; y. f

Fig. 12is a detached perspective View of the levers `for withdrawing thelock from the vneedle-supporting dial Fig. 13 is a. detail sectionalview of the Y pawl. andA ratchet mechanism for intermittently rotatingthe needle-supporting dial, showing, the pawls engaged and the dialbeing rotatedin the direction of the arrow:

Fig. 14 is a similar view, showing the pawls disengaged while the dialis locked from rotary 4movement, while the needles arc beingstraightened;

Fig. 15 is a plan view of Fig. 13, showing the needle-supporting dial inits outermost position; p

Fig. 16 is a plan view similar to Fig. 15; showing thevneedle-supporting dial moved all the way in, in the direction of thearrow;

Fig. 17 is a similar view, showing the needle dial as it is nearing itsoutermost position;

Fig. 18 is a detail-view of the means for .controlling the operation oi'the hammers;

the said meansy including a plurality of in terconnected levers andtripping devices,the position of which is herein illustrated with theclutch engaged and the levers set for the withdrawal of the clutch;

Fig. 19 is a similar view to Fig. 18, showing the position ofthe leversand the clutch disengaged;

Fig. 20 is a view similar to Fig. 19, showing the tripping device readyto engage one of the levers for allowing the clutchto become engaged;

Fig. 21 is a similar' view, showing the clutch engaged and the relativeposition of the tripping devices and levers;

Fig. 22 is a detached perspective view of one of the tripping latchesfor operating upon one of the levers;

Fig. 23 is' ak detached perspective view of the other tripping latch foroperating upon another lever;

Fig. 24 is a detached perspective view of the locking means for holdingthe dial while the needles are being straightened;

Fig. 25 is a view showing the locking lever withdrawn while theneedle-supporting dial is being rotated;

Fig. 26 is a view showing the locking device lever released and inengagement with the needle-supporting dial which is ready to be movedinwardly;

Fig. 27 is a view similar to Fig. 26, with the locking lever engaged andthe dial moved in, in the direction of the arrow;v the Fig. 31 is aperspective view of the needle cioolr-cletecting mechanism; f

Fig. 32 is a detail view of the positive selection blow device fordetermining the strength of the blow of the hammer as comparedl with thecrook inthe needle;

Fig. 33 is a similar view to Fig. 32; showing the selegtion blow devicein a position indicating a different degree of blowto be given thehammer;

Fig. 34 is a detail sectional View ot the positive selective blow deviceand the coacting blow member carried by the hammer; Fig. 35 is a similarView to Fig. 34, illustrating a different position;

Figs. 36, 3T'and 38 are diagrammaticv views, showing the relativepositions of the hammer, needle-crooldetecting finger, and the blockmember upon which the needle is straightened, the positions in eachfigure illustrating the path of movementV of the needle as it is drawnbeneath the straightening hammer in the direction'of the arrow;

Fig. 39 is a detail sectional viewo'the needle-discharging means;

Fig. 40 is a detail elevation vof the needle block and ejecting springi'or ejecting the straightened needles into the chute leading to thereceiving needle pan;

Fig. 41 is a detail perspective view of the needle block or yoke whichstraddles the needle-supporting dial and is yieldingly held withrelation thereto;

Fig. 42 is a perspective view of the inovable slide which holds theVneedle pan;

Fig. 43 is a detail perspective view of the lug which alternatelyengages a double worm for reciprocating the slide carrying the needlepan

